Talking-machine.



PATENTED MAY 7, 1907. SHEBLE.

T. KRAEMER & H

TALKING MACHINE. APPLICATION FILED DEG.19. 1905.

wflwf APPLICATION FILED 1330.19.1905.

2 SHEETS-SHEET 2 THOMAS. KRAEMER AND HORACE SHEBLE,

OFjPHILADELPI-IIA, PENNSYL- .VANIA, ASSIGNORS TO HAWTHORNE AND S'HEBLE MANUFACTURING fO'OMPANY, or PHILADELPHIA,

PENNSYLVANIA.

I Specification of Letters Patent.

PENNSYLVANIA, A CORPORATION OF I TALKING- MACHINE.

Patented May '7, 1907.

Application filed December 19,1905. Serial No. 2 2,429.

To all whom, it may concern."

Beit known that we, THOMAS KRAEMER and HORACE SHEBLE, both citizens of the the record is latter being mounted upon a rotating table 3, having a central spindle 4, and rotative United States, and residents of Philadelphia,

Pennsylvania, have invented certain Improvements in Talking-Machines, of which the following is a specification.

The object of our invention is to provide simple and eilective'means' for so mounting and controlling the hollow arm carrying the sound-box of a disk-record talking machine,

that said arm can be swung in any-desired direction without restraint because of pressure exerted upon a pivotal portion of the arm by the amplifying horn used in. connection with the machine, and can be caused to follow the s iral-groo've of the record withou wear upon t e walls of said groove. i

In the accompanying drawing Figure 1 is a side elevation of suiiicient of the motor box of a disk-record talking machine and of the soundbox-c,arr ying arm and'mounting there for to illustrate our presentinvention; Fig. 2 is a plan view of the same with part of the sound-box-carrying arm broken away, parts of some of the convolutions of the spiral groove of the record being also shown; Fig. 3 is a view, partly in. elevation and partly in vertical section, of the mounting for the soundboxcarrying arm, this view showing also part of the amplifying hprn and its mounting; Fig. 4 is a transverse section on the line aa, Fig. 3, and Fig. 5is an enlarged view of part of the device.

1 represents part of the motor-containing box-of that ty e oftalking machine in which l brmed upon a fiat disk 2, the

movement being imparted to said spindle from the spring structure 5 by means of a spur wheel 6, a spur pinion 7, a counter shaft 8, and spiral toothed gears 9 and 10. Y In machines of this type the sound box 11 is carried by ahollow arm 12, and the latter is usually mounted so as to swing about a vertical axis, whereby, when the stylus 13, which is, carried by the stylus lever 14 of the sound-box, has

been caused to engage with the spiral groove of the record 2, it will follow-said groove as the record is. rotated, the hollow arm 12 swinging about its axis so as to permit such movementof the stylus, which, of course, is

independent of rapid vibration due to the wavelike configuration of the groove, these rapid vibrations being-transmitted through the mediumof the stylus lever to the diaphragm of the sound-box, so as to reproduce the sounds represented by said wavelike configuration of the groove.

In carrying out our invention, we impart swmgmg movement to the arm 12by means 7 independent of the record, this movement being so timed in respect to the speed of rotation of the record that the stylus 13 will follow the spiral groove without such pressure upon either wall of'the same as'to have any material wearing efi'ect thereon, hence the integrity ofthe record will be preserved indefinitely. This independent movement of the swinging arm 12 is effected in the following manner: Meshing with the same spur wheel-6 of the spring structure which drives the spindle 4 of the record carryingtable 3, is a spur pinion 15, mounted-upon a shaft 16, the latterbeing mounted insuitable bear is mounted upon a short shaft or s indle 20 carried by a bearing 21 on the lid o the box,

said bearing also carrying another short shaft or spindle 22, which is secured to, or forms part of, a worm 24, as shown in Fig. 2. The spur pinion 23 meshes with the spur wheel .19 and the worm 24 is in mesh with the teeth of a segment 25 which is carried by, or forms part of, a post 26, depending from the under side of the hollow arm 12, as shown in Fig. l,

the teethof the segment 25 and worm 24 be-' ing of a pitch corresponding with the pitch of the spiral groove of the record, whereby the stylus 13 will always be maintained in said groove. Some play is permitted between ings within the motor box 1, or upon the un the threads of the worm 24 and the teeth of i the segment 25, however, asshown in Fig. 5, so that the stylus 13 can accommodate itself to any slight departure from a true spiral course presented by the groove of the record.

' At one side of the motor box 1 is a bracket tubular stud 28 serving as a support for the stylus lever when the sound-box-carrying arm is thrown to one side, as shown by"dot ted lines in Fig. 2. When the stylus lever-is thus supported, the stylus 13 can bedroppedt from the same into the tubular 28 by slackening the confining screw 30,. whereby; said stylus is normally secured to the stylus lever, the discarded stylus then dropping into.

the tubular stud 28, and when a suflioient number of them have accumulated therein, they can be discharged therefrom by removin the plug 29 at the bottom of'the same.

. n order to mount the jsound-box-carrying arm 12 so that it can swing freelyto and fro and can be lifted in order to free the stylus from engagement with the record and permit of the application of a fresh stylus to the stylus lever, we mount said arm 12 in the following manner. A bracket 31 secured to the side or end of the motor box 1 is provided at its upper end with a tubular elbow 32 having a vertical termination or mouth-.33 and a horizontal, or substantially horizontal, termination or mouth 34. To the termination 33 is pivoted another elbow 35 which carries the amplifying horn 36 of the machine, and is! supported verticallyby a rib or flange 37 on i "the vertical member of the elbow 32, whereby said horn is free to turn about a vertical axis; Secured to, and projecting upwardly, from,

the horizontal termination or moutlr34 of 'the elbow 32, is a vertical pin 39, upon which is pivotally. mounted a socket 40, which is provided, at its lower end, with a laterally ranching yoke 41, terminating in pintles 42, and to these pintles are hung the upwardly and rearwardly curved arms of a yoke 43 secured to the top of the hollow arm 12.

Whena more extended lateral swingis de sired, the free end of the arm is lifted so that the arm will swing upon its pivots 42, and, as

the latter arein a plane above the mouth 34,

-the open endof the arm canbe'fully with 5 5 drawn from said mouth, whereupon the arm can be swung laterally in either direction to any desired extent, the amount of lift thus provided also insuring free access to the stylus lever of the sound box, and thus permitting ready removal of an old or worn-stylus,

and the ready application of a newi'and' un worn one. We claim:

1. The combination of the rotating record 6 5 holder of a disk-record-talking machine, a

sound-box having a record-engaging stylus, a

swinging,sound-box-carrying arm and a de-- vice iOI mOVHIg the latter having, as elements,

a toothed segment and a worm loosely engaging the same, 'so that the stylus can accommodate itself toany slight departure from a true ,spiralcourse' presentedby the grdove of the record.

2. The combination of the rotating record holder of a disk-record talking machine, a sound-box having a record-engaging stylus, a swinging sound-box-carrying arm, and a support for said arm when the stylusis free from'engagement with the record, said support consisting of a tubular stud mounted upon the'm'otor box of-the machine.

3; The combination of the rotating record holder o'f'a disk-record talking machine, a

sound-box having'a record engaging stylus, a 8'5 sound-box-carrying arm, a support therefor having apro ecting vertical pin, a socket pivotalfy mounted upon said pm and carrying a yoke, and a second yoke carried by the-arm v and pivotally mounted upon the-yoke ofthe socket. In testimony whereof we have signed our names to this specification," in the presence of two subscribing Witnesses.

THOMAS KRAEMER, HORACE SHEBLE. WVitness'esz KATE A. BEADnE, Jos. H.KLE11 I. 

